Seafirst Marine Hydraulic Steering Systems
AVAILABLE EXCLUSIVELY FROM SEABOARD MARINE
Cylinder Ram Cross Reference Guide
 
 
Manufacturer - TELEFLEX / SEASTAR
MODEL NUMBER VOLUME
Inch³ / cc's
Stroke
Inches / mm
BA125-7ATM
HC5312
7.2" / 118 7" / 177.8mm
BA135-7ATM
HC5313
8.5" / 139 7" / 177.8mm
BA150-7
HC5349/HC5355
10.2" / 167 7" / 177.8mm
BA175-7
HC5350/HC5356
13.2"/216 7" / 177.8mm
BA200-7
HC5351/HC5357
18.9" / 310 7" / 177.8mm

BA200-11
HC5378/HC5379

18.9" / 486 11in 279.4mm

Manufacturer - MORSE
MODEL NUMBER VOLUME
Inch³ / cc's
Stroke
Inches / mm
HS3000 (303932) 6.5" / 107 7" / 177.8mm
HS4000 (303942) 11.5" / 188 7" / 177.8mm
HS5000 (308610) 13.6" / 222 6.70" / 170.18mm

Manufacturer - WAGNER
MODEL NUMBER VOLUME
Inch³ / cc's
Stroke
Inches / mm
N-65 6" / 98  
N-85 7.8" / 128  
N40-120 7.7" / 127 4.72 " / 120mm
N40-190 12.2" / 200 7.47" / 190mm
N50-190 19.1" / 314 7.47" / 190mm
N50-300 30.2" / 495 11.81" / 300mm
N80-190 49" / 802 7.47" / 190mm
N-175-750 14.7" / 241 7.5" / 190.5mm
N-175-1000 19.6" / 321 10" / 254mm
N-250-800 33" / 541 8" / 203.2mm
N-250-1000 41.5" / 680 10" / 254mm
N-250-1300 53.6" / 878 13i" / 330.2mm

Manufacturer - LS (POMPES)
MODEL NUMBER VOLUME
Inch³ / cc's
Stroke
Inches / mm
(Outboard Cylinder) 
28ST HB/HBR 8.64" / 141.6  
VHM228 6.4" / 106  
VHM232 6.8" / 112  
(Inboard Cylinder) 
VHM45 DT 14.6" / 240  
VHM45.C228 16.3" / 268 9" / 228mm
VHM60 DT 30.8" / 505  
VHM28 DTP 4.2" / 69.2 5 29/32" / 150mm
VHM32 DTP 7.35" / 120.5 7 7/8" / 200mm
VHM40 DTP 11.6" / 191 8in 204mm
VHM40.C254 14.5" / 239 10" / 254mm
VHM50 DTP 21.5" / 352 9" / 228mm
VHM50.C300 28.3" / 464 11 13/16 in 300mm
VHM60.300 40.5" / 664 11 13/16" / 300mm
(Double Cylinder)
BV 32 T 14.7" / 242 6 49/64" / 172mm
BV 40 T 23" / 378 6 49/64" / 172mm
Manufacturer - VETUS
MODEL NUMBER VOLUME
Inch³ / cc's
Stroke
Inches / mm
MType 30 4.1" / 67 5.9in 150mm
MT45 9.3" / 152  
MT52 6.3" / 104 6.29" / 160mm
MT65 9.3" / 152  
MT72 8.9" / 146 8.85" / 225mm
MT80 11.6" / 190  
MType 105 16" / 261  
MType 110 16.8" / 275  
MType 125 15.5" / 253 6.29" / 160mm
MType 140 21.3" / 350  
MType 175 21.7" / 356 8.85" / 225mm
MType 215 32" / 532  
MType 225 30.5" / 500 7.87" / 200mm
MType 340 45.8" / 750  
OB35 6.44" / 106  
OB85 10.35" / 170  

Manufacturer - MAROL
MODEL NUMBER VOLUME
Inch³ / cc's
Stroke
Inches / mm
MRB-30 4.6" / 75  
MRB-50 6.6" / 108  
MRB-63 9.4" / 154  
MRB-80 24.1" / 395  

Manufacturer - KOBELT
MODEL NUMBER VOLUME
Inch³ / cc's
Stroke
Inches / mm
7040 - B7.5 11" / 180 7.5" / 190.5mm
7040 - B5.5 8" / 131 5.5" / 139.7mm
7040 - B10 14.6" / 239  
7050 - B7.5 20.3" / 333 7.5" / 190.5mm
7050 - B10 27" / 442  
7050 - B12 32.4" / 531  
7080 - B7.5 43.8" / 718 7.5" / 190.5mm

Manufacturer - HY-DRIVE
MODEL NUMBER VOLUME
Inch³ / cc's
Stroke
Inches / mm
310 9.9" / 162  
312 6.4" / 105  
313 11.9" / 195  
314 18.9" / 310  
316 8.8" / 144  


 
 

OVERVIEW

INBOARD CYLINDER
  HC 125 B-7C
  HC 150 B-5
  HC 150 B-7
  HC 150 B-7C
  HC 150 B-9
  HC 175 B-7C
  HC 200 B-7
  HC 200 B-9
  HC 200 B-11
  HC 250 B-9
  HC 250 B-11
INBOARD CYLINDER CROSS REFERENCE
UPDATED DAILY
POWER STEERING UNIT
RUDDER ANGLE INDICATOR
HELM PUMPS
SHP SERIES HELM PUMP (SMALLER VESSELS)
VARI-PUMP HP 4590 (LARGER VESSELS)
OIL PUMP & POWER PACK
TYPICAL ORIENTATION EXAMPLES
DOWNLOADS
 
For more information on Seafirst Products
contact: tony@SBMar.com